Home / Publications / E-library page
Only AES members and Institutional Journal Subscribers can download
In order to facilitate the communication among speakers, speech reinforcement systems equipped with microphones and loudspeakers are employed. Due to the acoustic couplings between them, the speech intelligibility may result ruined and, moreover, high channel gains could drive the system to instability. Acoustic Feedback Cancellation (AFC) methods need to be applied to keep the system stable. In this paper a new Test Bench for testing AFC algorithms in real environments is proposed. It is based on the TMS320C6748 processor, running the Suppressor-PEM algorithm, a recent technique based on the PEM-AFROW paradigm. The partitioned block frequency domain adaptive filter (PB-FDAF) paradigm has been adopted to keep the computational complexity low. A professional sound card and a PC, where an automatic gain controller has been implemented to prevent signal clipping, complete the framework. Several experimental tests confirmed the framework suitability to operate under diverse acoustic conditions.
Author (s): Faccenda, Francesco; Squartini, Stefano; Principi, Emanuele; Gabrielli, Leonardo; Piazza, Francesco
Affiliation:
Universitá Politecnica della Marche, Ancona (AN), Italy
(See document for exact affiliation information.)
AES Convention: 134
Paper Number:8835
Publication Date:
2013-05-06
Import into BibTeX
Session subject:
Speech Processing
Permalink: https://aes2.org/publications/elibrary-page/?id=16736
(4161KB)
Click to purchase paper as a non-member or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member Join the AES. If you need to check your member status, login to the Member Portal.
Faccenda, Francesco; Squartini, Stefano; Principi, Emanuele; Gabrielli, Leonardo; Piazza, Francesco; 2013; An Embedded-Processor Driven Test Bench for Acoustic Feedback Cancellation in Real Environments [PDF]; Universitá Politecnica della Marche, Ancona (AN), Italy; Paper 8835; Available from: https://aes2.org/publications/elibrary-page/?id=16736
Faccenda, Francesco; Squartini, Stefano; Principi, Emanuele; Gabrielli, Leonardo; Piazza, Francesco; An Embedded-Processor Driven Test Bench for Acoustic Feedback Cancellation in Real Environments [PDF]; Universitá Politecnica della Marche, Ancona (AN), Italy; Paper 8835; 2013 Available: https://aes2.org/publications/elibrary-page/?id=16736
@article{faccenda2013an,
author={faccenda francesco and squartini stefano and principi emanuele and gabrielli leonardo and piazza francesco},
journal={journal of the audio engineering society},
title={an embedded-processor driven test bench for acoustic feedback cancellation in real environments},
year={2013},
number={8835},
month={may},}
TY – paper
TI – An Embedded-Processor Driven Test Bench for Acoustic Feedback Cancellation in Real Environments
AU – Faccenda, Francesco
AU – Squartini, Stefano
AU – Principi, Emanuele
AU – Gabrielli, Leonardo
AU – Piazza, Francesco
PY – 2013
JO – Journal of the Audio Engineering Society
VL – 8835
Y1 – May 2013